package exercise_2;
import java.awt.Graphics;
import javax.swing.JPanel;

public class circle extends JPanel{
	
	public void paintComponent(Graphics g){
		super.paintComponent( g );
		
		for( int i=0;i<12; i++ ){
			g.drawOval( 120-10*i, 120-10*i,
					20+20*i, 20+20*i);
		}
		
	}
	
}
